Improved condenser for alcohol-stills



fing-pipe, having short waste-pipes leading'theretrom overflow-pipes, for preventing the uid from rising @tutti emitir.

EDWARD SMEE'TH, OF

CHICAGO, ILLINOIS.

Letters Patent No. 96,157, dated October 26, 1869.

IMPROVED CONDENSER FOR ALCOHOL-STILLS.

The Schedule referred to :ln these Letters Patent and making part of the same.

To allY whom 'it may concern Be it known that I, EDWARD SMEETH, of Chicago, in the county oi' Cook, and State of Illinois, have invented an Improvement in Alcohol-Condensers; and I do hereby declare that the following is a full, clear, and exact description thereof', reference being had to the accompanying drawings, making part of thisspecication, in which- Y Figure 1 is a perspective view of a coil of condensinto the discharge-pipe, and also draw-oli` cocks applied lto short pipes leading into the discharge-pipe.

Figure 2 is a sectional view of the coil, the waste and draw-ott` pipes, and the discharge-pipe.

Figure 3 isa modification of the condenser of figs. 1 and 2.` .Similar letters of reference indicate corresponding parts in theseveral iigures.

This invention relates to an improvement on the condensing-apparatus of spirit-stills; and consists in providing the condenser with means whereby a quartity of watery residuum can be retained at a given height in the lowestbends of the worm, and all rising' above such height allowed to escape back into the still, as will be hereinafter explained.

To enable others skilled Iin the art to understand my invention, I will describe its construction and operation. g

In the accompanying drawings- A represents a condensing-worm, through which the alcoholic and watery vapors are conducted, on their way from the still.

The coils are arranged so as to retain in their lowest bends the watery residuum, through which the vapors are required to pass on their way through the coil.

From each one of the bends ot? the coil A depends a pipe, b, which forms a communication with a dis-l charge-pipe, B, leading back into the`sti1l, above the high-liquid mark therein.

To each pipe b, a cock is applied, as shown in tigs. 1 and 2, for drawing oft the contents from the bends ofthe coil A, whenever it is necessary to do so.

Just at the points required for the high-water mark, in the several coils, pipes a are applied, which pipes communicate with' the discharge-pipe B, and serve as\ above the desired height in the coils.

. In the condenser represented in figs. 1 and 2, each one of the lowest bends of pipe A is provided with an overflow-pipe, a., and a draw-cti` pipe, b l

In iig. 3, I have represented a modification ot' the above plan, which consists in applying to the discharge-pipe B, at a point between the draw-oid pipe b, nearest the still C, and this still, an arched pipe, g, between the limbs of which a cock, c, is applied to the pipe. B. This arched pipe g rises a little above the point required for the highnvater line in the lowest .bends of pipe A, so that the liquid will stand at the same level in the'arched pipe g that it does in the bends of pipe A.

vVhen the cock c in -pipe B. is shut, the liquid resnltin g from condensation ofthe vapors passing through pipe A, will accumulate in pipe B, and rise in the bends of the pipe A, to a given height, after which the liquid will overflow in the arch g, and escape back into the still.

This latter arrangement enables me to eiect the overflow ot' the 4surplus liquid, and also the discharge of all the liquid from tbe `pipe A, by means of a single overmr-pipe and a single cock, applied to the pipe B, while, in the arrangement shown in figs. 1 and 2, an overflow-pipe and a cock are required for each one of the lowest bends of the pipe A.

I am aware, that in the well-known Adams still, the condensing-vessels are provided with short drawoii pipes, which are provided with cocks, and communicate with a pipe pleading back into the still, which latter is provided with cocks, for shutting oiicommunication from any one of said vessels. This still is not provided with overflow-pipe, for automatically conducting the liquid from the vessels.

Having described my invention,

That I claim as new, .and desire to secure by Letters Patent, is-

One or more overiiow-pipes applied to a still, in such manner as to retain part ot' the liquid resulting from condensation of vapor in the lower portions of such condenser, and allow the surplus liquid to escape back into the still, substantially as described.

ED\VARD SMEETH.

Witnesses: l

FRED. ZscHocK, JOHN SCHOEMAKER. 

